Pleger, John J · Chicago : The Inland printer company · leaf 85
he ideal cooker is one that has a water jacket andair-tight glue chamber. The glue is drawn into the indi- 70 BOOKBINDING vidual pots from a faucet. The water jacket is kept at auniform heat by steam seepage through a siphon andthe water level is automatic by means of a return pipe. The glue is… … liiili\i(lual Electric Glue Pots. for much waste of time in cleaning the hands and handlebefore using. Glue is purchased in flakes, sheets, cakes, strips, rib-bons, or in pulverized form. In soaking glue, it is neces-sary to immerse all in water, as protruding pieces requireconsiderable heat to…
Bookbinding
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